Comparison

Plain Flashcards vs Red Sheet

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Plain Flashcards

Create flashcards from text, PDFs, or images using AI. Supports spaced repetition, translation, and pronunciation for over 20 languages. Syncs across devices and offers customizable study sessions.

Highlights
  • AI flashcard generation from text, PDF, or image
  • Spaced repetition system (SRS)
  • Translation and pronunciation for 20+ languages
  • iCloud sync across devices
  • Customizable study sessions and reminders
  • Import and export card data
Features
Read full description

Flashcards app is ideal for expanding vocabulary, foreign language learning, and training for exams with spaced repetition support. New: AI Flashcards Generation Generate complete study sets in seconds from a text prompt, a PDF document, or an image. Powered by advanced AI to help you skip the manual entry and start studying immediately. Key Features: - Create your own lists of cards using text and images. - Spaced repetition support (SRS) for long-term retention. - Translation and pronunciation support for 20+ languages. - iCloud Sync: Keep your cards safe and synced across all your devices - Set reminders to stay consistent with your goals. - Export and import cards to stay in control of your data. - Shuffle mode and customizable study sessions. Privacy Policy: https://goingmerry.xyz/privacy-policy/ Terms of Use: https://goingmerry.xyz/terms-conditions/

About

Red Sheet

Create and study flashcards from your PDFs, notes, and images. This app lets you hide and reveal text to transform study materials into interactive flashcards for faster memorization. Supports various import options and flexible study tools.

Highlights
  • Create flashcards from PDFs
  • Import from note apps and cloud storage
  • Hide and reveal text for study
  • Create flashcards from photos and images
  • Vocabulary and word list flashcards
  • One-tap show/hide for quick review
Features
Read full description

◆ All-in-One PDF Memorization App with Red Sheet Study Turn your PDFs, notes, textbooks, handouts, and images into powerful study materials. This app helps students memorize faster by hiding and revealing important parts of their own documents. Import PDF files, photos, scanned notes, class handouts, worksheets, and study materials, then create memorization blocks directly on the page. It works like a digital red sheet, flashcard maker, and PDF study tool in one simple app. ◆ PDF Memorization Made Simple ・Import PDF files and study directly from the page ・Hide words, definitions, formulas, diagrams, and answers ・Tap to reveal hidden areas while reviewing ・Use red sheet style memorization on PDF pages ・Study textbooks, school handouts, exam materials, and notes ・Create your own PDF memorization notebook If you already study with PDFs, this app turns them into active memorization tools. ◆ Red Sheet Style Study for PDFs and Images Use memorization blocks to cover the parts you want to remember. Place blocks over text, formulas, diagrams, definitions, answers, or explanations. ・Hide text like using a red sheet ・Reveal answers by tapping ・Create blocks anywhere on a PDF or image ・Adjust block size by dragging the edges ・Change the color and style of blocks ・Use blocks for notes, textbooks, worksheets, and scanned documents This is useful when you want to memorize from your own materials without rewriting everything into separate flashcards. ◆ Smooth Vertical Review for Memorization Review multiple PDF pages and images smoothly. Vertical scrolling makes it easy to study long documents, like moving a red sheet from top to bottom. ・Scroll vertically through study pages ・Review many PDF pages at once ・Memorize photos and handouts continuously ・Swipe between pages and cards ・Add more images when needed ・Study at your own pace Useful for test prep, school study, certification exams, language learning, and daily review. ◆ Useful Study Tools ・One-tap show and hide for fast review ・Multiple memorization blocks for one page ・Auto-align blocks for cleaner layouts ・Zoom in with two fingers to study small text ・Hidden areas stay aligned even when zooming ・Add memo text to support memorization ・Hide memo text for self-testing ・Organize study decks by title or subject Create separate study materials for English, science, history, math, medical terms, law, certification exams, or any subject that requires memorization. ◆ Great For ・Students preparing for tests and exams ・PDF study and textbook review ・Vocabulary memorization ・Language learning ・Science, history, math, and social studies ・Certification exam preparation ・Medical, legal, and technical study ・People who want a simple flashcards maker ・Students who use GoodNotes, notes apps, or PDF files ・Anyone who wants to memorize from their own materials ◆ How to Use 1. Import a PDF file, photo, or image 2. Place memorization blocks over the parts you want to hide 3. Tap to reveal the answer while studying 4. Repeat until you can remember it 5. Organize your materials by subject and review again ◆ Why This App Is Different This app focuses on PDF memorization and red sheet style study. You do not need to recreate every page from scratch. Use your own PDFs, notes, handouts, images, and textbooks as they are, then hide only the parts you want to memorize. It is a simple way to turn everyday study materials into flashcard-style memorization tools. ◆ Recommended If You Want ・A PDF study app for memorization ・A flashcards maker from PDFs ・A red sheet style study app ・A way to memorize school notes and handouts ・A simple tool for exam preparation ・A study app that works with your own materials ・A faster way to hide and reveal answers Start studying your own PDFs, notes, and images with red sheet style memorization. Make your study materials easier to review, repeat, and remember. Terms of Service https://hidevoicy.com/en/tos Privacy Policy https://hidevoicy.com/en/privacy

Screenshots

Plain Flashcards4 screens
Red Sheet4 screens

Verdict

The call

The clearest difference is ads: Plain Flashcards at none against Red Sheet's shown. Plain Flashcards also leads on ratings volume (281 vs 5) and rating (4.4 vs 4.2). Red Sheet's advantage is update cadence (every 3 days vs weekly) and device support (4 vs 2). On price, review sentiment, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Plain Flashcards sells 4 in-app purchases, starting at $3.99 per month and Red Sheet sells 7 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Plain Flashcards holds the better App Store score, 4.4 against 4.2. That said, the two scores are not equally well evidenced: Plain Flashcards has 281 ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 73% of Plain Flashcards's written reviews are positive against 80% of Red Sheet's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Plain Flashcards ships an update weekly, Red Sheet every 3 days. The most recent releases landed on September 28, 2026 and September 30, 2026 respectively.

Scorecard6 real differences · 4 level
Plain Flashcards versus Red Sheet: the parameters behind the verdict, then further details
ParameterPlain FlashcardsRed Sheet
PriceFreeFree
Rating4.4 (281 ratings) — better4.2 (5 ratings)
Positive reviews73.4% of reviews80.0% of reviews — better
Number of ratings281 — better5
Update frequencyWeeklyEvery 3 days — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod, Mac — better
Requires iOS18.013.0 — better
Further details — not scored
Size38 MB193 MB
Age rating4+4+
DeveloperGoing Merry LLCFoodmenu.world Inc.

Customer experience

Plain Flashcards

All ratings281 ratings
Positive83.3%
Neutral7.5%
Negative9.3%
Written reviews192 reviews
Positive73.4%
Neutral12.5%
Negative14.1%

Red Sheet

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews35 reviews
Positive80.0%
Neutral8.6%
Negative11.4%

Bugs and requests

Plain Flashcards

Reported bugs

20 issues
  • Cannot turn off shuffle feature
  • Cards automatically shuffle and cannot be turned off
  • Cannot rename or move sets of cards and have them stay in order
  • Editing order is inconsistent
  • Swiping to move cards is finicky
Show 15 more
  • No search function within decks
  • Not optimized for iPad
  • Text-to-speech quality is poor
  • Daily study limits or lockout
  • Photo replacement bug after adding new photos
  • Translation feature is unreliable or stops working
  • App crashes when exporting decks
  • Cannot delete cards easily
  • Spaced repetition feature not working correctly
  • Audio sometimes doesn't play
  • Translation button not responding
  • Cards flip over when studying in reverse
  • Tutorial is confusing
  • Cards disappear after writing them
  • Scrolling issues after updates

Requested features

33 requests
  • Option to turn off shuffle
  • Ability to move multiple cards at once
  • Search function within decks
  • Folders for organizing decks
  • Ability to merge decks
Show 28 more
  • Ability to duplicate decks
  • Alphabetical sorting of cards
  • Option to edit individual cards easily
  • Improved iPad interface
  • Widget support
  • Apple Watch integration
  • Option to donate to developer
  • Ability to combine decks
  • More consistent translation functionality
  • Improve text-to-speech quality
  • Add a share feature for decks
  • Ability to see a list of all cards in a deck
  • Option to pin decks
  • Improve photo handling
  • Add drawing/annotation capabilities
  • Option to customize font size
  • Option to see how many cards are left
  • Back/front arrow for faster review
  • Increase photo size option
  • Option to manually arrange cards
  • Ability to move cards between decks in bulk
  • Rearrange order of decks
  • Improve spaced repetition functionality
  • Option to combine decks or select multiple cards at once
  • Option to add icons to decks
  • Option to change card colors or add icons for front/back
  • Ability to delete decks
  • Add a tutorial or better instructions

Red Sheet

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

Plain Flashcards

Subscriptions2
  • Plain Flashcards Plus - Monthly$3.991 Month
  • Plain Flashcards Plus - Annual$17.991 Year
One-time2
  • Say Thanks$1.99
  • Support the Mission$4.99
7 purchases

Red Sheet

Subscriptions7
  • Monthly Special plan$2.991 Month
  • Monthly Super Saver Plan$2.991 Month
  • Monthly Value Plan$3.991 Month
Show 4 more
  • Basic Plan$5.991 Month
  • 3 Month Plan - V 3.1.5 needed$9.993 Months
  • Half year plan (Sale)$17.996 Months
  • Half year plan - V2.9.0 needed$22.996 Months

Questions

Is Plain Flashcards free?
Plain Flashcards is free to download, with in-app purchases available.
Is Red Sheet free?
Red Sheet is free to download, with in-app purchases available.
Which has better reviews, Plain Flashcards or Red Sheet?
Plain Flashcards is rated higher. Plain Flashcards averages 4.4 out of 5 from 281 ratings, while Red Sheet averages 4.2 from 5 ratings.
Do Plain Flashcards or Red Sheet have ads?
Red Sheet shows ads; Plain Flashcards does not.
Which is updated more often, Plain Flashcards or Red Sheet?
Plain Flashcards ships an update weekly, and Red Sheet every 3 days. Most recently, Plain Flashcards was updated on September 28, 2026 and Red Sheet on September 30, 2026.

Other comparisons